KRT5 and urinary bladder carcinoma: Goutas et al. [43] analyzed the expression of GATA3 and CK5/6 in 77 Ta, T1, and T2 bladder carcinomas and classified the cases into a luminal (GATA3+/CK5/6−) and a basal (GATA3−/CK5/6+) subtypes.